Synthesis, Pharmacological Evaluation, and Molecular Modeling Studies of Novel Peptidic CAAX Analogues as Farnesyl-Protein-Transferase Inhibitors
作者:Vincenzo Santagada、Giuseppe Caliendo、Beatrice Severino、Antonio Lavecchia、Elisa Perissutti、Ferdinando Fiorino、Angela Zampella、Valentina Sepe、Daniela Califano、Giovanni Santelli、Ettore Novellino
DOI:10.1021/jm0506165
日期:2006.3.1
Fifteen analogues of the C-terminal CA1A2X motif were synthesized and evaluated for their inhibition potency against farnesyltransferase (FTase). Replacement of the A2 residue by phenylalanine or tyrosine-derived analogues, in which a different number of methyl groups were introduced on the aromatic ring, resulted in compounds less active than the reference compound CVFM against FTase except for compounds
合成了C末端CA1A2X基序的15个类似物,并评估了它们对法呢基转移酶(FTase)的抑制能力。用苯丙氨酸或酪氨酸衍生的类似物取代A2残基,在芳环上引入了不同数量的甲基,导致化合物对FTase的活性比参考化合物CVFM弱,除了化合物I和VI(IC50 = 1分别与CVFM和化合物IV(IC50 = 0.1 microM)相当,其活性是参考化合物的6倍。由于伪肽衍生物I-IX在细胞测定中不起作用,因此合成了N-甲酰基和甲基酯衍生物(化合物X-XV)并在不同的细胞系上进行了测试,结果表明,在某些情况下,对转化细胞的活性和明显的选择性。为了使获得的结果合理化,进行了分子建模实验,表明这些产物抑制FTase的分子基础。